Ueda Seisakusho OPL-550 Series Differential Pressure Switch

Manufacturer: Ueda Seisakusho Co., Ltd.
Model : OPL-550 series

Features

The OPL-550 series is a general-purpose differential pressure switch that is widely used in industrial machinery, hydraulic filters, compressors, chemical plants, etc. along with industrial air and hydraulic control devices.
The set value can be changed from the outside without removing the cover.
A metal bellows is used for the pressure-receiving element.
In addition, the tip of the operating lever has a quick action mechanism that uses the repulsive force of a spring, and this differential pressure switch operates accurately in conjunction with the sensitive action of a snap switch.

Item	Specification
Product Name	Indoor differential pressure switch
Size	W.130 x D.74 x H.232 mm
Protection Structure	IP40 (IEC529) equivalent
Standard Coating Color	Gray (N‑5.0)
Durability	Electrical & Mechanical Life: 300,000 times or more
Weight	Approx. 1.5 kg
Pressure Receiving Part	Bellows Type
Material	Phosphor Bronze

Model	Pressure Adjustment Range (Range) MPa		ON-OFF Pressure Differential Range (Diff.) MPa		Pressure Resistance (MPa)
Model	Minimum	Maximum	Smallest	Largest	Pressure Resistance (MPa)
OPL-550-1-R3B	0	0.3	0.02	0.2	1.5
OPL-550-2-R3B	0.01	0.5	0.03	0.25	1.5
OPL-550-4-R3B	0.02	0.7	0.03	0.35	2.0
OPL-550-5-R3B	0.05	1.0	0.05	0.4	2.0

(A)	550 = Indoor general-purpose type 650 = Indoor dust-proof and drip-proof type
(B)	No code = Contact configuration 1a1b (standard product) W = Contact configuration 2ab
(C)	3 = Adjustable pressure range (refer to specifications)
(D)	R3 = R 3/8 (PT 3/8 thread) RC2 = Rc 1/4 (PT 1/4 thread) Note 1 F6 = ø6 mm copper pipe flare fitting Note 2
(E)	No code = Bellows and cap: Phosphor bronze, vacuum use (standard product) S = Bellows and cap: Stainless steel (SUS316)

Note 1: Only compatible with phosphor bronze type.
Note 2: For flare type fittings (F6), the mounting bracket (type B) is required.